DE3854954D1 - Holder for high-frequency coils for magnetic resonance imaging for imaging the temporomandibular joint - Google Patents

Holder for high-frequency coils for magnetic resonance imaging for imaging the temporomandibular joint

Info

Publication number
DE3854954D1
DE3854954D1 DE3854954T DE3854954T DE3854954D1 DE 3854954 D1 DE3854954 D1 DE 3854954D1 DE 3854954 T DE3854954 T DE 3854954T DE 3854954 T DE3854954 T DE 3854954T DE 3854954 D1 DE3854954 D1 DE 3854954D1
Authority
DE
Germany
Prior art keywords
longitudinal axis
surface coil
imaging
holder
magnetic resonance
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE3854954T
Other languages
German (de)
Inventor
Douglas A Ortendahl
Brenda G Nichols
Ernesto Zepeda
Matthias Gyori
Louis T Kircos
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
University of California
University of California Berkeley
Original Assignee
University of California
University of California Berkeley
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by University of California, University of California Berkeley filed Critical University of California
Application granted granted Critical
Publication of DE3854954D1 publication Critical patent/DE3854954D1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
    • G01R33/32—Excitation or detection systems, e.g. using radio frequency signals
    • G01R33/34—Constructional details, e.g. resonators, specially adapted to MR
    • G01R33/34007—Manufacture of RF coils, e.g. using printed circuit board technology; additional hardware for providing mechanical support to the RF coil assembly or to part thereof, e.g. a support for moving the coil assembly relative to the remainder of the MR system
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
    • G01R33/32—Excitation or detection systems, e.g. using radio frequency signals
    • G01R33/34—Constructional details, e.g. resonators, specially adapted to MR
    • G01R33/341—Constructional details, e.g. resonators, specially adapted to MR comprising surface coils

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)

Abstract

An adjustable holder for a magnetic resonance imaging RF surface coil for imaging a part of the body such as the temporomandibular joint. Elements are provided for positioning and securing the RF surface coil (14) at a first predetermined point along a longitudinal axis of the holder and for positioning and securing the RF surface coil at a second predetermined point transverse to the longitudinal axis and at a radial distance R from the longitudinal axis. The preferred embodiment provides orbital movement of the surface coil about the longitudinal axis using a pair of U-shaped runner guides (26,27) disposed substantially transverse to the longitudinal axis and adjustable clamps in cooperative engagement with the runner guides. The surface coil (14) may be adjusted along a path transverse to the longitudinal axis by way of an adjustable shaft or arm which can be moved inwardly and outwardly, and the surface coil can be pivoted in a step-wise manner using a pivot head (25) having a plurality of equally spaced detents. The pivot head is biased in a direction away from the surface coil and adjustably engages one of the plural detents while rotating about an axis substantially parallel to the longitudinal axis.
DE3854954T 1987-10-30 1988-10-17 Holder for high-frequency coils for magnetic resonance imaging for imaging the temporomandibular joint Expired - Lifetime DE3854954D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/114,343 US5085219A (en) 1987-10-30 1987-10-30 Adjustable holders for magnetic reasonance imaging rf surface coil

Publications (1)

Publication Number Publication Date
DE3854954D1 true DE3854954D1 (en) 1996-03-14

Family

ID=22354669

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3854954T Expired - Lifetime DE3854954D1 (en) 1987-10-30 1988-10-17 Holder for high-frequency coils for magnetic resonance imaging for imaging the temporomandibular joint

Country Status (5)

Country Link
US (1) US5085219A (en)
EP (1) EP0314359B1 (en)
JP (1) JP2615160B2 (en)
AT (1) ATE133792T1 (en)
DE (1) DE3854954D1 (en)

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Also Published As

Publication number Publication date
JPH021239A (en) 1990-01-05
ATE133792T1 (en) 1996-02-15
EP0314359B1 (en) 1996-01-31
EP0314359A2 (en) 1989-05-03
JP2615160B2 (en) 1997-05-28
EP0314359A3 (en) 1990-10-03
US5085219A (en) 1992-02-04

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Legal Events

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8332 No legal effect for de